KelseyCalcines KelseyCalcines

22-02-2017
Mathematics

Answered

I want to how they answer this question. What is the value of x?

I want to how they answer this question. What is the value of x? class=

Verified Answer :

ChandrikaP ChandrikaP

22-02-2017

√(15+x) = 2x+3
take sqr for both side

15x+10=(2x+3)^2

15x+10=4x^2+9+22x3
15x+10=4x^2+9+12x
4x^2-3x--1=0

solve it u will x=1,-1/4

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